Mahou Shoujo Site

Synopsis

Yatsumura tells Aya she's also a magical girl and takes her home. She tells her that using her powers shortens her lifespan and that a "Magical Hunter" is killing magical girls to stole their magical artifacts, and that her friend Rina went missing while investigating him. She also stays all night in Aya's bedroom, protecting her from her brother's abuse. The next day, the Hunter attacks Aya, but Yatsumura convinces her to use her weapon. They discover where Aya's weapon has sent the Hunter and Yatsumura realizes the Hunter is Rina herself. She tells them that she's been killing other magical girls because she wants to survive to the end. Yatsumura forces her to explain, and Rin says that she met the website's manager who told her about a secret page with a countdown to an event called the Tempest, to happen on 07:23 August 11, that will destroy this world and open the door to a new one.

(Source: Wikipedia)